n. 投弃货物, 漂流到海岸的货物

[化] 沉料; 抛弃后沉底的货物(船过海滩减载措施)

[经] 船舶遇险时投弃的货物

Jetsam \Jet"sam\, Jetson \Jet"son\, n. [F. jeter to throw: cf.
OF. getaison a throwing. Cf. {Flotsam}, {Jettison}.]
1. (Mar. Law) Goods which sink when cast into the sea, and
remain under water; -- distinguished from {flotsam}, goods
which float, and {ligan} (or {lagan}), goods which are
sunk attached to a buoy.

2. The act of throwing objects from a ship to lighten the
load; jettison[1]. See {Jettison}, 1.

3. Hence: Anything thrown overboard from a ship, whether
floating or not.
[PJC]

4. Hence: [fig.] Objects scattered about in a disorderly
manner; as, he couldn't find his sneakers among the jetsam
in his room. [Colloq.]
[PJC]